The Oceans' Oddest Creatures and Why They Matter

How is a knowledge of creatures we may never see important to our general understanding of how life works on our planet? We’ll find out this hour with Ellen Prager, former chief scientist at the world’s only undersea research station and author of the book “Sex, Drugs, and Sea Slime: The Oceans’ Oddest Creatures and Why They Matter” (University Of Chicago Press, 2011).